CN107129817A - A kind of oil hydrogenation refining system and technique based on improving quality of coal by pyrolysis - Google Patents
A kind of oil hydrogenation refining system and technique based on improving quality of coal by pyrolysis Download PDFInfo
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- CN107129817A CN107129817A CN201710408909.4A CN201710408909A CN107129817A CN 107129817 A CN107129817 A CN 107129817A CN 201710408909 A CN201710408909 A CN 201710408909A CN 107129817 A CN107129817 A CN 107129817A
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- coal
- pyrolysis
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- coke
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- 239000003245 coal Substances 0.000 title claims abstract description 109
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 88
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 43
- 238000007670 refining Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 121
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000001257 hydrogen Substances 0.000 claims abstract description 39
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 39
- 239000000571 coke Substances 0.000 claims abstract description 35
- 238000010791 quenching Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000000737 periodic effect Effects 0.000 claims abstract description 24
- 238000000746 purification Methods 0.000 claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 claims abstract description 19
- 238000001179 sorption measurement Methods 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 18
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 230000008676 import Effects 0.000 claims description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 14
- 239000003546 flue gas Substances 0.000 claims description 14
- 239000010913 used oil Substances 0.000 claims description 14
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 11
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 239000002283 diesel fuel Substances 0.000 claims description 6
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 230000000171 quenching effect Effects 0.000 claims description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims description 2
- 239000005864 Sulphur Substances 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 230000003009 desulfurizing effect Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 39
- 239000011269 tar Substances 0.000 description 15
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/047—Pressure swing adsorption
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/16—Hydrogen sulfides
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/50—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification
- C01B3/56—Separation of hydrogen or hydrogen containing gases from gaseous mixtures, e.g. purification by contacting with solids; Regeneration of used solids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B47/00—Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/005—After-treatment of coke, e.g. calcination desulfurization
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B57/00—Other carbonising or coking processes; Features of destructive distillation processes in general
- C10B57/08—Non-mechanical pretreatment of the charge, e.g. desulfurization
- C10B57/10—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G45/00—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds
- C10G45/02—Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds to eliminate hetero atoms without changing the skeleton of the hydrocarbon involved and without cracking into lower boiling hydrocarbons; Hydrofinishing
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/121—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors containing NH3 only (possibly in combination with NH4 salts)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/04—Integrated processes for the production of hydrogen or synthesis gas containing a purification step for the hydrogen or the synthesis gas
- C01B2203/042—Purification by adsorption on solids
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/10—Feedstock materials
- C10G2300/1003—Waste materials
- C10G2300/1007—Used oils
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Industrial Gases (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The present invention relates to a kind of oil hydrogenation refining system based on improving quality of coal by pyrolysis and technique.Including parts such as coal drying oven, improving quality of coal by pyrolysis stove, gas burner, water reclamation system, dry coke-quenching chamber, cold moudling unit, gas purification unit, pressure swing adsorption hydrogen production unit, oil hydrogenation refined unit, smoke induced draught fan, air-blasters.The semi-coke cold moudling formed coke that pyrolysis of coal is produced in the system, the pyrolysis gas of generation provides hydrogen source through pressure swing adsorption hydrogen production for desulfurizing oil is refined, and periodic off-gases return combustion is dried for coal, pyrolysis provides heat realization benign cycle.The beneficial effects of the invention are as follows：Make pyrolysis of coal and oil hydrogenation refine two systems to combine, be that oil hydrogenation is refined there is provided hydrogen source by the hydrogen-rich in pyrolysis gas, the application and oil hydrogenation that solve pyrolysis of coal pyrolysis gas refine the problem in hydrogen source source.
Description
Technical field
The present invention relates to a kind of oil hydrogenation refining system based on improving quality of coal by pyrolysis and technique, belong to low-order coal upgrading and
Used oil Hydrofining Technology field.
Background technology
Coal is the main energy sources of China, 70% or so is accounted in primary energy structure, wherein low order coal reserves accounts for the whole nation
More than the 55% of coal reserves is verified.Therefore low-order coal upgrading obtains tar, gas and semicoke, realizes the ladder profit of coal resources
With particularly significant.It is how efficiently gentle into problem using tar but the gentle yield of tar is relatively fewer.
With the development of national economy, the yield of used oil also rises constantly, these used oil or be dumped or
Person is incinerated or refined by local method, so on the one hand result in serious environmental pollution, on the other hand causes great money
Source is wasted.It is a kind of efficient approach that wherein used oil hydrofinishing, which obtains nonstandard diesel oil, but the difficulty restriction of the source of hydrogen
The regeneration of used oil.Therefore a kind of oil hydrogenation refining system based on improving quality of coal by pyrolysis had both solved low-order coal with technique and carried
The problem of the problem of gentle application of matter tar is difficult also solves the hydrogen source hardly possible of used oil hydrofinishing.And the system is to size
Enterprise is all suitable for, with use flexibly, and cost of investment is low, the characteristics of return rate is high.
The content of the invention
The purpose of the present invention is to propose to a kind of oil hydrogenation refining system based on improving quality of coal by pyrolysis and technique, by low-order coal
Upgrading and used oil hydrodesulfurization combine, and hydrogen source is provided for oil hydrogenation desulfurization by the hydrogen-rich in pyrolysis gas, solve
The application of pyrolysis of coal pyrolysis gas and oil hydrogenation refine the problem in hydrogen source source.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of oil hydrogenation refining system and technique based on improving quality of coal by pyrolysis, including coal drying oven, improving quality of coal by pyrolysis stove,
Gas burner, water reclamation system, dry coke-quenching chamber, cold moudling unit, gas purification unit, pressure swing adsorption hydrogen production unit, oil
Product hydrofinishing unit, smoke induced draught fan, air-blaster；The coal drying oven export of coal enters with improving quality of coal by pyrolysis stove coal
Mouth connection；The improving quality of coal by pyrolysis stove semi-coke outlet is connected with dry coke-quenching chamber semi-coke import；Dry coke-quenching chamber semi-coke outlet with
The import of cold moudling unit semi-coke is connected；Gas burner's exhanst gas outlet is connected with improving quality of coal by pyrolysis kiln gas import；Institute
The outlet of improving quality of coal by pyrolysis kiln gas is stated to be connected with coal drying oven gas approach；The coal drying oven exhanst gas outlet and water reclamation system
Gas approach is connected；The water reclamation system exhanst gas outlet is connected with smoke induced draught fan gas approach；The water reclamation system water
Outlet is connected with cold moudling unit water inlet；The improving quality of coal by pyrolysis stove pyrolysis gas outlet enters with gas purification unit pyrolysis gas
Mouth connection；The gas purification unit pyrolysis gas outlet is connected with pressure swing adsorption hydrogen production unit pyrolysis gas import；The transformation is inhaled
Attached Hydrogen Unit hydrogen outlet is connected with oil hydrogenation refined unit hydrogen inlet；The pressure swing adsorption hydrogen production unit periodic off-gases go out
Mouth is connected with dry coke-quenching chamber periodic off-gases import；The dry coke quenching periodic off-gases go out after respectively with the import of cold moudling unit periodic off-gases,
Gas burner's periodic off-gases import connection；The air-blaster outlet is connected with gas burner's import；The gas purification
Unit tar outlet is connected with oil hydrogenation refined unit tar import.
The production technology that the above-mentioned oil hydrogenation refining system based on pyrolysis of coal is realized：
(1) coal is sent in coal drying oven is directly contacted with flue gas, and coal is dried using the sensible heat of flue gas；It is dried
Coal is re-fed into improving quality of coal by pyrolysis stove, and output pyrolysis gas, coal are pyrolyzed with the high-temperature flue gas mediate contact that gas burner is provided
Semi-coke after pyrolysis by semi-coke outlet fall into dry coke-quenching chamber with periodic off-gases exchange heat；
(2) water and binding agent that semi-coke, the water reclamation system cooled down through dry coke-quenching chamber is provided are by quality 50:1:1 ratio
Enter cold moudling unit style together into formed coke；
(3) tar is reclaimed in flushing of the high temperature pyrolysis gas produced by improving quality of coal by pyrolysis stove through gas purification unit ammoniacal liquor, is returned
The tar of receipts is put into together with used oil in oil hydrogenation refined unit, and the nonstandard diesel oil of output and hydrogen sulfide, hydrogen sulfide are made again
Into sulfuric acid；
(4) pyrolysis gas through gas purification purification unit is then sent through in pressure swing adsorption hydrogen production unit, and the hydrogen of enrichment is provided
Oil product hydrofinishing unit is given, periodic off-gases are in dry coke-quenching chamber with pressing 5 after the heat exchange of high temperature semi-coke:1 is sent to gas burner respectively
With cold moudling unit.
The beneficial effects of the invention are as follows：Combine pyrolysis of coal and oil hydrogenation desulfurization two systems, by pyrolysis gas
Hydrogen-rich provide hydrogen source for oil hydrogenation desulfurization, solve application and the oil hydrogenation desulfurization hydrogen source of pyrolysis of coal pyrolysis gas
The problem in source.
Brief description of the drawings
Fig. 1 is the present invention a kind of oil hydrogenation refining system and process flow diagram based on improving quality of coal by pyrolysis；
Embodiment
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
Present system includes：Coal drying oven 1, improving quality of coal by pyrolysis stove 2, gas burner 6, water reclamation system 8, dry coke quenching
Room 7, cold moudling unit 9, gas purification unit 3, pressure swing adsorption hydrogen production unit 4, oil hydrogenation refined unit 5, flue gas air inducing
Machine 10, air-blaster 11.
A kind of oil hydrogenation refining system and technique based on improving quality of coal by pyrolysis, the export of coal of coal drying oven 1 and coal
It is pyrolyzed the coal import of upgrading furnace 2 connection；The semi-coke of improving quality of coal by pyrolysis stove 2 outlet is connected with the semi-coke import of dry coke-quenching chamber 7；It is described
The outlet of the semi-coke of dry coke-quenching chamber 7 is connected with the semi-coke import of cold moudling unit 9；The exhanst gas outlet of gas burner 6 and pyrolysis of coal
The gas approach of upgrading furnace 2 is connected；The exhanst gas outlet of improving quality of coal by pyrolysis stove 2 is connected with the gas approach of coal drying oven 1；The coal is done
The dry exhanst gas outlet of stove 1 is connected with the gas approach of water reclamation system 8；The exhanst gas outlet of water reclamation system 8 and smoke induced draught fan 10
Gas approach is connected；The water out of water reclamation system 8 is connected with the water inlet of cold moudling unit 9；The improving quality of coal by pyrolysis stove 2
Pyrolysis gas outlet is connected with the pyrolysis gas import of gas purification unit 3；The pyrolysis gas outlet of gas purification unit 3 and pressure-variable adsorption
The pyrolysis gas import of Hydrogen Unit 4 is connected；The hydrogen outlet of pressure swing adsorption hydrogen production unit 4 and the hydrogen of oil hydrogenation refined unit 5
Import is connected；The periodic off-gases of pressure swing adsorption hydrogen production unit 4 outlet is connected with the periodic off-gases import of dry coke-quenching chamber 7；The dry coke quenching 7
Periodic off-gases are connected with the periodic off-gases import of cold moudling unit 9, the periodic off-gases import of gas burner 6 respectively after going out；The air drum
The outlet of blower fan 11 is connected with the import of gas burner 6；The tar outlet of gas purification unit 3 and oil hydrogenation refined unit 5
Tar import is connected.
Flue gas and coal are that flue gas is directly heated with coal in indirectly heat, coal drying oven 1 in the improving quality of coal by pyrolysis stove 2.
The tar of the output of gas purification unit 3 is mixed into oil hydrogenation refined unit 5 with used oil.
Hydrogen sulfide that the oil hydrogenation refined unit 5 is produced produces sulfuric acid.
According to the structure of the above-mentioned oil hydrogenation refining system based on improving quality of coal by pyrolysis, the oil product based on improving quality of coal by pyrolysis adds
It is as follows that hydrogen refines production craft step：
(1) coal is sent in coal drying oven 1 is directly contacted with flue gas, and coal is dried using the sensible heat of flue gas；After drying
Coal be re-fed into improving quality of coal by pyrolysis stove 2, with gas burner 6 provide high-temperature flue gas mediate contact pyrolysis output pyrolysis
Gas, the semi-coke of coal after pyrolysis by semi-coke outlet fall into dry coke-quenching chamber 7 with periodic off-gases exchange heat；
(2) water and binding agent that semi-coke, the water reclamation system 8 cooled down through dry coke-quenching chamber 7 is provided press quality 50:1:1 ratio
Formed coke is made into cold moudling unit 9 together in example；
(3) tar is reclaimed in flushing of the high temperature pyrolysis gas produced by improving quality of coal by pyrolysis stove 2 through the ammoniacal liquor of gas purification unit 3,
The tar of recovery is put into together with used oil in oil hydrogenation refined unit 5, the nonstandard diesel oil of output and hydrogen sulfide, and hydrogen sulfide is again
Sulfuric acid is made；
(4) pyrolysis gas purified through gas purification unit 3 is then sent through in pressure swing adsorption hydrogen production unit 4, and the hydrogen of enrichment is carried
Oil hydrogenation refined unit 5 is supplied, periodic off-gases are in dry coke-quenching chamber 7 with pressing 5 after the heat exchange of high temperature semi-coke:1 is sent to coal gas combustion respectively
Burn room 6 and cold moudling unit 9.
Exemplified by handling 20,000 tons of coals year：
1st, the leading indicator of coal：
2nd, coal can obtain after drying, pyrolysis shaping：
| Formed coke/ten thousand ton | The Nm of pyrolysis gas/ten thousand3 | Tar/ton | Water/ton |
| 1.44 | 602 | 907.2 | 605 |
Note：Wherein pyrolysis gas is not enter into pressure swing adsorption hydrogen production unit.
3rd, pyrolysis gas component：
(1) pyrolysis gas component before pressure swing adsorption hydrogen production
| H2 | CO | CH4 | CO2 | N2 | H2S | C2H4 | Calorific value/Kcal/Nm3 |
| 64.05% | 15.07% | 13.01% | 2.2% | 2.75% | 0.97% | 1.95% | 4003 |
(2) periodic off-gases component
| H2 | CO | CH4 | CO2 | N2 | H2S | C2H4 | Calorific value/Kcal/Nm3 |
| 47.11% | 22.17% | 19.14% | 3.24% | 4.05% | 1.43% | 2.87% | 4451.34 |
4th, with 5 after periodic off-gases exchange heat through dry coke-quenching chamber and semi-coke:1 is sent to gas burner and cold moudling unit respectively；
5th, pressure swing adsorption hydrogen production unit can obtain hydrogen 337Nm3/ h, 4.5 ten thousand tons of used oil of year processing.
Oil hydrogenation in the present invention refines principle：
(1) macromolecular in oil product is become into small molecule, in the case where not impacted to oil product proportion, improves oil product
Indices, especially for waste mineral oil, by the system it is refined after, can as high-quality diesel oil formulated oil；
(2) hydrodesulfurization, not only removes the elemental sulfur in oil product, hydrogen sulfide and mercaptan, thioether, and can also be by difficulty
With the thiophene-based removal of sulfur compounds of removing；
(3) decolourize, be deodorized for oil product.
Oil product in the present invention is related to waste mineral oil (used oil, transformer oil, hydraulic oil, waste lubricating oil, residual oil etc.), original
Oil and its semi-products, product oil etc. (catalytic diesel oil, ordinary pressure diesel etc.)；Coal tar and the tar of biomass thermal processing etc..
Coal scope used in pyrolysis of coal system is wide in the present invention, both can be low-order coal (lignite, jet coal, bottle coal,
Rich coal etc.) can also be coal slime.
Claims (5)
1. a kind of oil hydrogenation refining system and technique based on improving quality of coal by pyrolysis, it is characterised in that the system is dry including coal
Dry stove, improving quality of coal by pyrolysis stove, gas burner, water reclamation system, dry coke-quenching chamber, cold moudling unit, gas purification unit, change
Press Adsorption Hydrogen unit, oil hydrogenation refined unit, smoke induced draught fan, air-blaster；The coal drying oven export of coal with
The import of improving quality of coal by pyrolysis stove coal is connected；The improving quality of coal by pyrolysis stove semi-coke outlet is connected with dry coke-quenching chamber semi-coke import；It is described
The outlet of dry coke-quenching chamber semi-coke is connected with cold moudling unit semi-coke import；Gas burner's exhanst gas outlet and improving quality of coal by pyrolysis
Kiln gas import is connected；The improving quality of coal by pyrolysis kiln gas outlet is connected with coal drying oven gas approach；The coal drying oven cigarette
Gas outlet is connected with water reclamation system gas approach；The water reclamation system exhanst gas outlet connects with smoke induced draught fan gas approach
Connect；The water reclamation system water out is connected with cold moudling unit water inlet；The improving quality of coal by pyrolysis stove pyrolysis gas outlet with
The import of gas purification unit pyrolysis gas is connected；The gas purification unit pyrolysis gas outlet and pressure swing adsorption hydrogen production unit pyrolysis gas
Import is connected；The pressure swing adsorption hydrogen production unit hydrogen outlet is connected with oil hydrogenation refined unit hydrogen inlet；The transformation
The outlet of Adsorption Hydrogen unit periodic off-gases is connected with dry coke-quenching chamber periodic off-gases import；The dry coke quenching periodic off-gases go out after respectively with cold pressing
The import of forming unit periodic off-gases, gas burner's periodic off-gases import connection；The air-blaster outlet is entered with gas burner
Mouth connection；The gas purification unit tar outlet is connected with oil hydrogenation refined unit tar import.
2. a kind of oil hydrogenation refining system and technique based on improving quality of coal by pyrolysis according to claim 1, it is characterised in that
Flue gas and coal are that flue gas is directly heated with coal in indirectly heat, coal drying oven in the improving quality of coal by pyrolysis stove.
3. a kind of oil hydrogenation refining system and technique based on improving quality of coal by pyrolysis according to claim 1, it is characterised in that
The tar of the gas purification unit output is mixed into oil hydrogenation refined unit with used oil.
4. a kind of oil hydrogenation refining system and technique based on improving quality of coal by pyrolysis according to claim 1, it is characterised in that
Hydrogen sulfide that the oil hydrogenation refined unit is produced produces sulfuric acid.
5. system is realized according to claim 1 a kind of oil hydrogenation refining system and technique based on improving quality of coal by pyrolysis,
Characterized in that, the refined production craft step of the oil hydrogenation based on improving quality of coal by pyrolysis is as follows：
（1）Coal is sent in coal drying oven directly to be contacted with flue gas, and coal is dried using the sensible heat of flue gas；Dried coal is again
It is sent in improving quality of coal by pyrolysis stove, is pyrolyzed output pyrolysis gas with the high-temperature flue gas mediate contact that gas burner is provided, coal is through warm
Semi-coke after solution is fallen into dry coke-quenching chamber by semi-coke outlet and exchanged heat with periodic off-gases；
（2）The water and binding agent that semi-coke, the water reclamation system cooled down through dry coke-quenching chamber is provided are by quality 50:1:1 ratio is together
Into cold moudling unit style into formed coke；
（3）Tar is reclaimed in flushing of the high temperature pyrolysis gas produced by improving quality of coal by pyrolysis stove through gas purification unit ammoniacal liquor, recovery
Tar is put into together with used oil in oil hydrogenation refined unit, and sulphur is made in the nonstandard diesel oil of output and hydrogen sulfide, hydrogen sulfide again
Acid；
（4）Pyrolysis gas through gas purification purification unit is then sent through in pressure swing adsorption hydrogen production unit, and the hydrogen of enrichment provides oil supply
Product hydrofinishing unit, periodic off-gases are in dry coke-quenching chamber with pressing 5 after the heat exchange of high temperature semi-coke:1 is sent to gas burner and cold respectively
Molded unit.
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Cited By (1)
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